To accurately answer your question, I would need to see the diagram you are referring to. However, I can provide some general information about the two types of bonds mentioned:
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Covalent Bonds: These are formed when two atoms share one or more pairs of electrons. This type of bond typically occurs between nonmetals.
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Hydrogen Bonds: These are weaker interactions that occur when a hydrogen atom covalently bonded to one electronegative atom is attracted to another electronegative atom. Hydrogen bonds are commonly found in water molecules and in the structure of DNA.
If you can describe the diagram or provide additional context, I’d be happy to help identify the type of bond shown!